The ability to customize your game is a little bit more than I expected for a free application, and I was glad to see it as a part of the blackjack game. The level of customization in terms of the number of decks was also a welcome surprise. While I do wish that the button to access these features was a bit more obvious, I do appreciate that they found a way to include these options without cluttering up the interface.
The game has many options for you to control. To access these options, simply tap the small information button located on the deck at the top of the screen. You can select the number of decks with which to play, as well as whether or not features like advice, insurance, or counting are enabled.